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About this quote

What does it mean?
The quote asks how two systems, Crays and Alphas, address the challenges of POSIX compatibility.
In plain terms
It questions how Crays and Alphas solve POSIX issues.
What can you take from it?
Consider platform differences when designing software.

Where it applies

  • high‑performance computing
  • software porting

Putting it to work

  • choose portable APIs
  • test on target hardware

Questions to consider

  • What are the main POSIX hurdles for these systems?
  • How can developers mitigate them?

Another view

The quote is a technical question without an answer provided.

More from Larry Wall

  1. A 'goto' in Perl falls into the category of hard things that should be possible, not easy things that should be easy.

    Permalink to quote #112
  2. Well, that's more-or-less what I was saying, though obviously addition is a little more cosmic than the bitwise operators.

    Permalink to quote #114
  3. It would be possible to optimize some forms of goto, but I haven't bothered.

    Permalink to quote #111

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